US 12,109,775 B2
Method for producing a sole of a shoe
Matthias Hartmann, Forchheim (DE); Reinhold Sussmann, Scheinfeld (DE); and Mauro Bonin, Nuremberg (DE)
Assigned to PUMA SE, Herzogenaurach (DE)
Filed by PUMA SE, Herzogenaurach (DE)
Filed on Dec. 22, 2021, as Appl. No. 17/559,220.
Prior Publication US 2023/0191736 A1, Jun. 22, 2023
Int. Cl. B29D 35/14 (2010.01); A43B 13/12 (2006.01); A43B 13/18 (2006.01); B29C 65/54 (2006.01); B29D 35/12 (2010.01); B29L 31/50 (2006.01)
CPC B29D 35/148 (2013.01) [A43B 13/122 (2013.01); A43B 13/125 (2013.01); A43B 13/187 (2013.01); B29C 65/542 (2013.01); B29D 35/122 (2013.01); B29D 35/128 (2013.01); B29D 35/142 (2013.01); B29L 2031/504 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of using a marriage mold, comprising:
providing an upper plate with a first wall;
providing a lower plate with a marriage cavity and a top wall;
molding a first midsole component by a first mold, the first midsole component having first channels therein made by mandrels that have a cross-sectional shape that matches the cross-sectional shape of the first channels;
molding a second midsole component by a second mold, the second midsole component having second channels therein made by mandrels that have a cross-sectional shape that matches the cross-sectional shape of the second channels; and
molding an outsole made with an outsole mold,
wherein the first and second midsole components are made of the same material, wherein the marriage mold is configured to receive the first and second midsole components,
wherein the outsole is inserted into the marriage mold with the two midsole components,
wherein the upper plate is secured to the lower plate such that the first wall and the top wall form a seal,
wherein the midsole components and the outsole are subjected to heat, and
wherein the assembly of midsole components are configured to join the outsole in the marriage mold in order to form a sole.